1055121529 has 32 divisors (see below), whose sum is σ = 1371168000. Its totient is φ = 787799040.

The previous prime is 1055121491. The next prime is 1055121533. The reversal of 1055121529 is 9251215501.

It is a happy number.

It is not a de Polignac number, because 1055121529 - 2¹⁵ = 1055088761 is a prime.

It is a super-2 number, since 2×1055121529² = 2226562881918595682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1055121529.

It is not an unprimeable number, because it can be changed into a prime (1055121539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 304197 + ... + 307645.

It is an arithmetic number, because the mean of its divisors is an integer number (42849000).

Almost surely, 2^1055121529 is an apocalyptic number.

It is an amenable number.

1055121529 is a deficient number, since it is larger than the sum of its proper divisors (316046471).

1055121529 is a wasteful number, since it uses less digits than its factorization.

1055121529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633.

The product of its (nonzero) digits is 4500, while the sum is 31.

The square root of 1055121529 is about 32482.6342681747. The cubic root of 1055121529 is about 1018.0462180027.

The spelling of 1055121529 in words is "one billion, fifty-five million, one hundred twenty-one thousand, five hundred twenty-nine".